Return-Path: Received: from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6BC11C002B for ; Wed, 1 Feb 2023 14:02:44 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 3DD3F418EF for ; Wed, 1 Feb 2023 14:02:44 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 3DD3F418EF Authentication-Results: smtp4.osuosl.org; dkim=pass (2048-bit key) header.d=mail.wpsoftware.net header.i=@mail.wpsoftware.net header.a=rsa-sha256 header.s=default header.b=RA6Mc7Va X-Virus-Scanned: amavisd-new at osuosl.org X-Spam-Flag: NO X-Spam-Score: -1.107 X-Spam-Level: X-Spam-Status: No, score=-1.107 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=no autolearn_force=no Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ccWU1qIvfioo for ; Wed, 1 Feb 2023 14:02:43 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 3572C416DE Received: from mail.wpsoftware.net (unknown [66.183.0.205]) by smtp4.osuosl.org (Postfix) with ESMTP id 3572C416DE for ; Wed, 1 Feb 2023 14:02:43 +0000 (UTC) Received: from camus (camus-andrew.lan [192.168.0.190]) by mail.wpsoftware.net (Postfix) with ESMTPSA id 5F516400F1; Wed, 1 Feb 2023 14:02:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mail.wpsoftware.net; s=default; t=1675260162; bh=tKdjItyoxV/RIyu+8rTd4Ep3kzs1ZphXqJR8HJYAQWI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=RA6Mc7VaOFuDKqW9TS51XEGxrJca4Mo91C4/gc3qNgh5pLHIpIe2TwDfNiVQN4mQ1 VOvfWEELe+hzBf5NyucPpTQVG+1uZWBr/S37nOTRTaxUk7/8Z6zEUcxNcDahM1MdRO 6VWLYG6j0D3fiBGGAq5NgHt/h7iyBSTOkJD7zqxJ9hPTJjR5xYRB6zT0dcGhwox2wQ ffn2TyIYIv6+pYqtZfhF/ve4oxGYc0BoFgeL0fcejjD66+gXAH8lY0m1yaY4yAjzrA DdB5+CqHLZQCJfmnCmc5NERck1woDxDtqdHvcT+3NqS7WXSTHwFeGT5ZS+0przT2Yd SGp/6lyu0Wqzw== Date: Wed, 1 Feb 2023 14:02:41 +0000 From: Andrew Poelstra To: Peter Todd , Bitcoin Protocol Discussion Message-ID: References: <764E460B-C0C6-47B8-A97E-F7CBC81FD645@petertodd.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="nWZB0gZ2X2UHlfwL" Content-Disposition: inline In-Reply-To: <764E460B-C0C6-47B8-A97E-F7CBC81FD645@petertodd.org> Subject: Re: [bitcoin-dev] Debate: 64 bytes in OP_RETURN VS taproot OP_FALSE OP_IF OP_PUSH X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Feb 2023 14:02:44 -0000 --nWZB0gZ2X2UHlfwL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 31, 2023 at 09:07:16PM -0500, Peter Todd via bitcoin-dev wrote: >=20 >=20 > On January 31, 2023 7:46:32 PM EST, Christopher Allen via bitcoin-dev wrote: > >All other things being equal, which is better if you need to place a > >64-bytes into the Bitcoin blockchain? A traditional OP_RETURN or a spent > >taproot transaction such as: > > > >OP_FALSE > >OP_IF > >OP_PUSH my64bytes > >OP_ENDIF >=20 > What's wrong with OpPush OpDrop? > This is a technical nit, but the reason is that is limited to 520 bytes (and I believe, 80 bytes by standardness in Taproot), so if you are pushing a ton of data and need multiple pushes, it's more efficient to use FALSE IF ... ENDIF since you avoid the repeated DROPs. --=20 Andrew Poelstra Director of Research, Blockstream Email: apoelstra at wpsoftware.net Web: https://www.wpsoftware.net/andrew The sun is always shining in space -Justin Lewis-Webster --nWZB0gZ2X2UHlfwL Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEkPnKPD7Je+ki35VexYjWPOQbl8EFAmPacPsACgkQxYjWPOQb l8E2fgf9GfLkWMUmOj+C4fu//NkYwU4gfaD0sPhfOh4BYyDLuV+/ONvTFh8Bcy9d F7slt/uFFcDu6BBFBydAwN7iXSWd9SLxG2ZmLZWKm2lG1UwF9NXC2jvUP+b0q6V0 UPn8rsUX8JgQOMFUX2rnSY3EAOv/d3HrZwTuwavSrIfhRiS6UOJ3hQbEBxa7eKG7 cKVHknyt3Q6dbe/m+H8eilt5g1C9wykjUjyQ/u4igKbJw4w4GlpBNlPi+GXnRyp0 ZpAkmmVZW8BX4GnWWsc0Px53L3GfzAxPPIWpp/oPk410SiTO6EVRfCB0hWLzbgKS vHRa7CTWt8+Hqa7m/T485ltq3g/FaQ== =A61H -----END PGP SIGNATURE----- --nWZB0gZ2X2UHlfwL--